Surfactant-assisted liquefaction of particulate carbonaceous substances

US4121995A · kind A · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventor

• George Hsu · San Jose, US

Key dates

• Filing date: Oct 7, 1976
• Grant date: Oct 24, 1978
• Expiry date: Oct 7, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G1/065
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A slurry of carbonaceous particles such as coal containing an oil soluble polar substituted oleophilic surfactant, suitably an amine substituted long chain hydrocarbon, is liquefied at high temperature and high hydrogen presence. The pressure of surfactant results in an increase in yield and the conversion product contains a higher proportion of light and heavy oils and less asphaltene than products from other liquefaction processes.